Iron



FIG. 1 is a left side view of an iron showing my new design;

FIG. 2 is a top view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a back view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a right side view thereof; and

FIG. 7 is a front perspective view thereof. 

The ornamental design for an iron, as shown and described. 